User Manual

ENGLISHen
14
6.1 Regular care
Regular care is required for the pump to func-
tion perfectly at all times. This also applies if
the pump is not switched on for extended pe-
riods of time (e.g. during operation in soaka-
ways).
Cleaning the pump
1. Rinse pump with clean water. Remove
persistent marks, e.g. algae deposits, with
brush and dishwashing liquid.
2. To rinse the inside of the pump:
dip pump into a container of clean water
and switch on briefly.
6.2 Pump storage
Caution!
Frost damages the pump and ac-
cessories as both always contain
water!
 If there is a danger of frost, disassemble
pump and accessories and store in frost-
free conditions.
6.3 Device maintenance (only for
SP 28-50 S Inox, DP 28-10 S
Inox)
Caution!
Lubricant may leak from the pump if
the seals are defective, causing con-
tamination of the liquid being pumped.
Although the lubricant contained in the sub-
mersible pump for dirty water is non-toxic, it
can alter the water properties.
Danger!
Maintenance work must only ever
be carried out by qualified, special-
ly trained staff. After 4,000 to max. 8,000
hours of operation, and in any case at least
once a year, the quantity and quality of the oil
in the oil reservoir must be checked.
Danger!
Prior to all servicing:
Unplug.
7.1 Troubleshooting guide
Pump does not run:
 No mains voltage.
– Check cables, plug, outlet and mains
fuse.
 Mains voltage too low.
– Use an extension cable with sufficient
conductor diameter.
 Motor overheated; motor protection relay
tripped.
– Eliminate the cause of overheating
(pump blocked by foreign objects?).
 Float switch does not switch pump ON
when water level rises.
– Make sure the float switch can move
unrestrictedly. If, despite sufficient mo-
bility of the float switch, the pump does
not switch ON: send the pump to the
service centre in your country.
Motor hums, but does not start:
 Pump blocked by foreign objects.
– Clean impeller.
Pump runs, but does not pump properly:
 Delivery head too high.
– Observe max delivery head (see 'Tech-
nical Specifications').
 Discharge hose kinked.
– Straighten discharge hose.
 Discharge hose leaky.
– Seal discharge hose; tighten screw fit-
tings.
Pump runs very noisily:
 Pump is sucking air.
– Ensure there is a sufficient water sup-
ply.
– Foreign objects are present (clean
pump).
– Manual mode has been set (shallow
water suctioning).
– Hold pump at an angle when submerg-
ing.
Pump runs continuously:
 Float switch does not reach cut-out posi-
tion.
– Make sure the float switch can move
freely.
Danger!
To avoid risks, only have repairs car-
ried out by qualified electricians using
original Metabo spare parts.
If you have Metabo electrical tools that re-
quire repairs, please contact your Metabo
service centre. For addresses see www.me-
tabo.com.
7. Troubleshooting
8. Repairs